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The Pacific plate converges with northeastern Eurasia at a rate of 8-9 m per century along the Kamchatka, Kuril and Japan trenches. Along the southern Kuril trench, which faces the Japanese island of Hokkaido, this fast subduction has recurrently generated earthquakes with magnitudes of up to approximately 8 over the past two centuries. These historical… (More)

The properties of a microspherical carbon column for the separation of peptides and proteins are described. One hundred and thirty-three peptides, with from 1 to 148 amino acid residues, were applied on a carbon column and eluted with a linear gradient of acetonitrile [10-70% (v/v), 30 min] in 0.1% (v/v) trifluoroacetic acid solution. The elution behaviour… (More)

Three human amyloidogenic Bence Jones proteins, NIG76 VlambdaII, NIG204 VlambdaI, and NIG250 VlambdaV, were characterized. In a comparative study, three amino acids, Ser-25a, Thr-68, and Val-95, were found to be common to amyloidogenic proteins of the VlambdaII subgroup. NIG204 had an insertion of Pro residue following position 30 (30a). Proteins having an… (More)

The chromatographic conditions for the use of a spherical carbon column at high temperatures up to 160 degrees C are described. The column heating system and the eluate cooling system are also described. Under the conditions studied, it was found that the carbon column at elevated temperature was stable and could be applicable to any compounds that are… (More)

Two amyloidogenic Bence Jones proteins (Am37 VkappaIV and NIG1 VkappaI) and one non-amyloidogenic protein (NIG26 VkappaIII) were characterized. The protein Am37 had four deletions when compared with the translated germ-line gene sequence: two Ser residues following position 27 (27e, 27f) in CDR1 and two amino acids Pro-44, and Tyr-49 in FR2 were deleted. A… (More)